Apparatus for packing powders



Dec. 17, 1929. H. J. GLAXNER APPARATUS FOR PACKING POWDERS Filed June 3, 1927 @515 W (liken W13 Patented Dec. 17, 1929 CARBON COMPANY, OF NEW YORK, N.

Y., A. CORPORATION OF DELAWARE AIPARATUS FOR PACKING POWDERS Application filed June 3, 1927. Serial No. 196,193.

This invention relates to the treatment of pulverulent material to better adapt itfor storage and shipment. It is particularly applicable to those powders of a light and fluffy nature which contain large amounts of occluded air or gases and which easily float in the air as dust, such for instance as carbon black and lamp black.

The main object of the invention is to provide a simple, inexpensive, and continuously operable apparatus for compacting it into substantially solid masses to thus reduce the bulkiness of the powder and to render it as near dustless as possible.

In carrying out my invention, I provide a supply container having a packing chamber opening thereinto through one wall thereof, and a plunger or packer movable back and forth in the container and adapted to enter the chamber and not only force the powder into the packing chamber, but to compress it therein and eject it therefrom. v

In the accompanying drawings, I have illustrated one embodiment of my invention, although it is to be understood that this form serves merely as an illustration of the invention, and'that other forms may be designed within the scope of the invention as defined in the appended claims.

In these drawings:

Fig. 1 is a side elevation of' an apparatus embodying my invention and adapted for use in carrying out the process, a portion being shown in section; and

Figs. 2 and 3 are sections on the lines 2-2 and 33 respectively of Fig. 1 looking in opposite directions as indicated by the arrows.

In the construction illustrated, there is provided a chamber of suitable size and adapted to receive the pulverulent material which is to be packed. The material may be delivered to this chamber either continuously or intermittently in any suitable manner, as for instance, through a delivery tube 11.

The top wall of the chamber 10 is preferably made of such material as will'permit the passage of air therethrough, but will prevent the passage of dust. As shown the top has cross braces 12 to which is secured a fabric layer 13. Ditferent fabrics may be used for different kinds of material but I find that canton flannel is very satisfactory for most powders.

Projecting from one wall of the chamber 10 and preferably from the bottom wall, there is a packing chamber 14 into which the material is forced by the action of a packing member 15. The packing chamber 14 is preferably in the form of a tube which may be secured in any suitable manner, for instance by a flange 17 screwed on the tube and bolted directly to the bottom of the chamber 10. This flange may be supported on cross braces 16.

The packing member is of a cross sectional form corresponding to that of the packing chamber 14, but is of an outside diameter slightly less than-the inside diameter of the tube 14. Thus slight clearance is left to permit the passage of air during the up and down strokes of the plunger and to prevent friction.

The plunger may be operated in any suitable manner and either by hand or from a suitable source of power. As-illustrated, it is jointed to a connecting rod 19 at across head 20 movable in suitable guides 21. The connecting rod 19 is secured to the crank 22 of a crank shaft 23 which may be driven by a belt on a pulley 24.

During each rotation of the crank shaft, the

plunger 15 is lifted to a point in the supply chamber 10 at a distance above the open end of the tube so that the material may fall by gravity into the tube beneath the plunger. As the plunger slowly descends it enters the tube and compacts the material in the lower part of the latter. As the plunger raises again, air and some powder may flow .down along the sides of the plunger so as to leave the ma terial packed in the-bottom of the tube in the form of a slug or solid body of the material.

.After the plunger leaves the upper end of the the desired extent in the tube, the addition of further powder to the upper end ofthe tube and the compacting of it by the plunger will force a corresponding amount of packed and substantially solid material through the restricted opening. This may be in the form of flakes or may break off as lumps or pieces.

If the apparatus is used for filling bags, the bag may be drawn up over the end of the tube so that the material as it is delivered from the tube will pass directly into the bag, or the material may drop from the tube into a barrel or other container or may pass on to a conveyor Which will deliver it to other apparatus or to a storage chamber.

In some cases the lower end of the tube 14 may be wide open, that is the opening may be of the full size of the diameter of the tube. Thus in filling a bag of substantially the same size as the tube, the bag would be slipped up over the tube until its bottom served to close the bottom of the tube. The bag would be gradually lowered as the material was packed into it. The bottom wall of the packing chamber in which the restricted opening is located, or the bottom of a bag serves as a resistance to insure the proper packing of the material.

The various parts are preferably supported by a single frame, so that they form parts of a single apparatus. As shown there are provided four vertical le s 26 which are connected together by cross braces 27 to hold them rigid. The frame serves to carry the various operating parts of the apparatus.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: V

1. An apparatus for compacting pulverulent material, including a supply chamber having a fabric top wall and an opening in the bottom wall, the tubeconnected to said opening, a plunger movable back and forth in said top wall and into and out of the upper end of said tube, and a packing around said plunger at said top wall, said tube having an outlet spaced a considerable distance below thelower limit of movement of said plunger.

supporting members, a pair of cross braces connecting oppositely disposed side braces, a collar supported by said cross braces, a supply chamber supported by said collar and having an aperture in the bottom thereof, a tube extending between said cross braces, secured to said collar and registering with said aperture, said chamber having a top wall provided with an aperture in registry With the first mentioned aperture, a plunger movable back and forth through said second mentioned aperture and adapted to enter said tube, and means for supplying pulverulent material to said chamber.

4. An apparatus for compacting pulverulent material including a supply chamber having an aperture in the bottom thereof, a tube registering withsaid aperture and depending therefrom and unsupported at its lower end, whereby a bag may be drawn up over said tube, means for supporting said chamber at the upper end of said tube, means for delivering pulverulent material to said chamber, and a reciprocating plunger adapt ed to move into and out of the upper end of said tube for compacting the material in the tube and delivering the compacted material to said bag.

Signed at Ouachita in theparish of 'Ouachita and State of Louisiana this 24th day of May A. D. 1927.

HERMAN JACOB GrLAXVERv 2. An apparatus for compacting pulverulent material, including a supply chamber having a fabric top wall and an opening 1n the bottom wall, a tube connected to said opening, and a plunger movable back and forth in said top wall and into and out of the up per end of said tube, said tube having an outlet spaced a considerable distance below the lower limit of movement of said plunger.

3. An apparatus for compacting pulveru lent material including a rectangular frame having vertical supporting members at the corners thereof, side braces connecting said 

